EP3271122B1 - Method for machining a workpiece - Google Patents

Description

Technical area

The invention relates to a method for machining a workpiece, in particular for a sash profile of a sash frame, wherein a first processing of the workpiece by means of a first processing device for producing a machined first surface for applying an adhesive, wherein after the application of the adhesive further processing of the workpiece he follows.

A method for producing a leg of a window sash made of plastic, for example, by the CH 554 479 described. A method for processing a workpiece, wherein a first processing of the workpiece by means of a first processing device is carried out for producing a machined first surface for applying an adhesive, wherein after the application of the adhesive, a further processing of the workpiece is carried out for example by the EP 2 253 441 described.

State of the art

The movable and usually openable element of a window, the casement, usually consists of a casement frame and a disc inserted therein. In this case, the sash frame usually consists of a plurality of sash profiles, which are connected to each other and enclose and hold the inserted disc.

In order to further increase the light transmission of windows, the sash profiles are provided narrowing in width. At the same time, the panes to be supported by the sash frame are chosen to be larger in area, thereby increasing the light transmission for the same window size. This causes an improved brightness in the interior, which is currently in vogue and increases the comfort in rooms.

In addition, for energy reasons in the disc more and more often used as an insulating glass pane with three panes, instead of using as usual in the past only two panes. This reduces the heat transfer through the glass and is preferable for energetic reasons. However, this leads to higher wheel weights and window weights and correspondingly increased forces acting, which are to be absorbed and forwarded by ever narrower window sash frames.

For this reason, window manufacturers now glue the window sash frame to the pane, so that the pane takes on a share of the static function. However, this happens hidden in the area of the glass fold flashover or the glass fold. In this case, currently applied wet adhesives are used, which are applied there directly on the sash profile, where then the disc is to be glued. An application of an adhesive tape instead of the wet adhesive is currently rather rejected, because the tape would be applied to the raw material, such as on the raw wood. For this purpose, a previously pretreated workpiece of a leg of a window sash would have to be subsequently reworked to create a rough surface that would be suitable for bonding. This would require an additional operation, which would complicate the manufacture. A machine for applying an adhesive tape, for example, by the DE 689 04 098 T2 described.

However, the bonding of the disc with a wet adhesive also has disadvantages, especially for smaller businesses, because the wet adhesive must be processed under defined environmental conditions, ie at a given temperature and humidity at a defined dust-free, and beyond the dosage is very accurate. It is almost impossible to apply this exactly by hand and to use it Application equipment is relatively expensive, which makes it not economical for small and medium-sized businesses.

Presentation of the invention, object, solution, advantages

It is the object of the invention to provide a method by means of which one can achieve a bonding by means of an adhesive simple and straightforward and the bonding is still inexpensive to effect.

This object is achieved with the features of claim 1.

An embodiment of the invention relates to a method for machining a workpiece, in particular for a sash profile of a sash frame, wherein a first processing of the workpiece by means of a first processing device for producing a machined first surface for applying an adhesive, wherein after the application of the adhesive, a further processing of the workpiece. Thus, the adhesive can be applied to a particular machined to final dimension surface before the remaining surfaces of the workpiece are processed. This can advantageously also be automated and easily implemented in the editing process.

It is particularly advantageous if the first processing for producing the first surface takes place in such a way that the first surface is thereby machined to a final dimension. Thus, the adhesive can be applied to a surface that does not need to be further processed because it has already been machined to final gauge. In this case, the term of machining, for example, make the cutting or cutting to size, so carry out a material removal in order to bring the workpiece at the machined location to a predetermined level. This applies to the first processing as well as for further processing. These are corresponding shaping processes.

According to the invention, when the first processing for producing the first surface also processes a second surface which is adjacent to the first surface, the second surface being arranged such that it substantially corresponds to a shadow region of the adhesive applied to the first surface. As a result, an adjacent surface can also be processed, which could not be processed in a subsequent processing, without damaging the adhesive already applied.

It is also advantageous if the first processing for producing the second surface takes place in such a way that the second surface is thereby machined to a final dimension. Thus, in this regard, a further processing step can be avoided, which could affect the adhesive.

According to the inventive concept, it is advantageous if the further processing is a machining of at least individual remaining surfaces of the workpiece to final dimensions. Thus, after application of the adhesive, the workpiece is then advantageously processed in a further processing device on remaining sides in order to bring it to final dimensions, so that it can optionally be cleaned, surface-treated, such as painted, and mounted in subsequent process steps. In this case, the surface treatment may advantageously also be or include a pretreatment, such as, for example, application of a primer, etc.

So it is in principle also possible that the further processing takes place in one process step or in several process steps. Thus, depending on the need for processing different surfaces of the workpiece this can be processed one after another by means of different tools.

It is also advantageous if the first processing takes place on a planing machine or milling machine. So can by means of the planer or the Milling a pre-processing of different surfaces of the workpiece done while also the processing of the first surface and optionally the second surface are made.

Furthermore, it is particularly advantageous if the further processing takes place on a second processing device, in particular on a milling machine, and in particular on a profiling machine or on a machining center. As a result, the first processing can be carried out on a first processing device and the further processing can be carried out on a separate further second processing device, so that the first processing device is then free again for the processing of the next workpiece.

It is also particularly advantageous if, after the production of the first surface and before the application of the adhesive, the workpiece or the first surface of the workpiece is cleaned by means of a cleaning device. As a result, the first surface can be freed of dust and / or chips, etc., so that application of the adhesive is uncomplicated and safe. Before the application of the adhesive, a pretreatment can advantageously also be carried out, such as the application of a primer or the like.

It is also expedient if the application of the adhesive takes place automatically by a laminating device or an application device. As a result, a secure application of the adhesive can be achieved. Alternatively, a manual application could also be advantageous if the application is carried out in particular according to a handling instruction and takes place at the required points.

It is particularly advantageous if the first processing device and the laminating device or application device are coupled or connected to one another in order to produce the first surface and apply the first Adhesive to connect to the first surface together. As a result, this can be done virtually in one pass, which simplifies the process.

Also alternatively or additionally, the laminating device or application device and the second processing device may be coupled or connected to each other in order to connect the application of the adhesive to the first surface and the further processing of the workpiece. Again, this can have advantages in process control with increased effectiveness, because the handling and possibly the intermediate storage of the workpieces between can be omitted.

According to the inventive concept, it is advantageous if the adhesive comprises or is an adhesive tape. This can be rolled up or otherwise applied. In this case, the adhesive tape can also be additionally provided with an adhesive which can be applied at least in regions after application of the adhesive tape.

It may also be advantageous if the adhesive comprises or is an adhesive which is in particular a pasty or fluid adhesive. This can be advantageously applied to the aforementioned positions. The application can be done for example by means of a nozzle as spraying. Also, the adhesive or adhesive may be applied or applied by means of a syringe, roller, roller or otherwise. The mass can also be activated later, for example, so that it is adhesive only after activation. For example, the adhesive tape can also have windows into which the adhesive is introduced so that the adhesive can be used in addition to the adhesive tape.

It is also advantageous if the workpieces are at least partially sawn or milled miter and mitred together. This allows a simple connection can be realized, due to the Bonding with a disc also leads to a sufficient overall stability, because the disc itself contributes to the stability.

Further advantageous embodiments are described by the following description of the figures and by the subclaims.

Brief description of the drawings

Fig. 1

eine schematische Darstellung eines Werkstücks für ein Flügelprofil eines Fensterflügelrahmens vor der ersten Bearbeitung,

Fig. 2

eine schematische Darstellung des Werkstücks für ein Flügelprofil eines Fensterflügelrahmens gemäß Figur 1 nach der ersten Bearbeitung und nach der Applikation des Klebestreifens,

Fig. 3

eine schematische Darstellung eines Werkstücks gemäß Figur 2 zusätzlich mit einer Darstellung eines Profils eines Endkonturfräsers, und

Fig. 4

ein Blockdiagramm zur Erläuterung des erfindungsgemäßen Verfahrens.

The invention will be explained in more detail on the basis of at least one embodiment with reference to the drawings. Show it:

Fig. 1

a schematic representation of a workpiece for a sash profile of a sash frame before the first processing,

Fig. 2

a schematic representation of the workpiece for a wing profile of a sash frame according to FIG. 1 after the first processing and after the application of the adhesive tape,

Fig. 3

a schematic representation of a workpiece according to FIG. 2 additionally with a representation of a profile of a final contour milling cutter, and

Fig. 4

a block diagram for explaining the method according to the invention.

Preferred embodiment of the invention

The FIG. 1 shows a workpiece 1 in cross section. The workpiece 1 is in the embodiment of FIG. 1 in section substantially rectangular or alternatively square and has a not shown in the Longitudinally an elongated rod-like shape. Also already provided and otherwise introduced folds can be provided in the workpiece.

The workpiece 1 is used after processing, for example, as a leg or wing profile of a sash frame, which or which can be assembled into a sash frame and which or which can then be glued to a pane of the sash.

Before being processed, the workpiece 1 advantageously has four circumferential side surfaces 2, 3, 4 and 5, which are machined in the following.

The FIG. 2 shows the workpiece 1 after a first processing in the region of the side surfaces 2 and 5. The first processing of the workpiece 1 by means of a first processing device for producing a machined first surface 6 for applying an adhesive tape 7 on the first surface. 6

In the exemplary embodiments, the method according to the invention is described on the basis of the application of an adhesive tape, it also being possible to apply an alternative adhesive instead of the adhesive tape. In this case, the adhesive may generally be the adhesive tape or else an adhesive which is applied. Also, in addition to an adhesive tape and an adhesive can be applied. This applies correspondingly to all exemplary embodiments described in the present application documents and will not be explicitly repeated again in the following.

The first surface 6 is formed substantially parallel to the side surfaces 3, 5 and is substantially perpendicular to the side surface 2. The first processing for producing the first surface 6 takes place in such a way that the first surface 6 is thereby machined to a final dimension.

Thus, the adhesive tape 7 can be applied to the first surface 6, so that it is glued securely.

It can further be seen that the first processing for producing the first surface 6 also processes a second surface 8 which is adjacent to the first surface 6, wherein the second surface 8 is arranged such that it essentially corresponds to a shadow region of the first surface Surface 6 glued adhesive tape 7 corresponds. The second surface 8 is arranged substantially perpendicular to the first surface 6 and has a height h, which is at least slightly greater than the height H of the applied adhesive tape 7. The first processing for producing the second surface 8 is also designed such that the second surface 8 is thereby processed to a final dimension. This is advantageous because a subsequent processing of the first surface 6 and the second surface 8 can be avoided, in which the applied adhesive tape 7 could be damaged or impaired.

Furthermore, it can be seen that above the second surface 8, the side surface 2 is processed up to the side surface 5 as a surface 9. However, this can only be done on a raw sheet of a pre-profiling, so that this surface 9 is optionally processed later in a subsequent processing step to a final dimension. Optionally, however, this surface 9 can also be processed as a part of the second surface 8 to its final dimensions.

The FIG. 2 shows the final dimension 10, 11, 12, to which the workpiece 1 is brought in a further processing. This is done after the application of the adhesive tape 7 on the first surface. 6

In this case, the further processing may be a processing of at least individual remaining surfaces of the workpiece to final dimensions, wherein the further processing takes place or will take place in one method step or in a plurality of method steps. The FIG. 3 shows after applying the Adhesive tapes 7, that the left side of the workpiece 1 in the areas of the final gauge 11, 12 is machined by means of a Endprofilfräsers 13 to its final dimension. Subsequently, the right side of the workpiece 1 in the region of the final dimension 10 can be finished by means of a further Endprofilfräsers. This is not shown.

According to the inventive concept, the first processing is carried out on a first processing device 14, which is designed as a planing machine or as a milling machine.

The further processing is advantageously carried out on a second processing device 15, such as in particular on a milling machine, which is designed in particular as a profiling or as a machining center. This is in FIG. 4 in the form of a block diagram 20.

In this case, after the production of the first surface and before the application of the adhesive tape 7, the workpiece 1 or the first surface 6 of the workpiece 1 is cleaned by means of a cleaning device 16. This can be a blow off of dust or chips. Also it can be another way of cleaning.

After cleaning, the adhesive tape 7 is applied. It is advantageous if the application of the adhesive tape 7 is carried out automatically by a laminating device 17. In this case, in the case of another application of the adhesive instead of a laminating device 17 and a general application unit 17 may be provided, by means of which the adhesive is applied.

According to the inventive concept, it is advantageous if the first processing device 14 and the laminating device 17 or application device 17 are coupled or connected to one another in order to produce the first surface 6 and apply the adhesive tape 7 to the first surface 6 to connect with each other. Also, this coupling can be omitted alternatively.

Alternatively or additionally, the laminating device 17 or application device 17 and the second processing device 15 may be coupled or connected to one another in order to connect the application of the adhesive tape 7 to the first surface 6 and the further processing. Also, this coupling can be omitted alternatively.

Both an adhesive which is an adhesive, an adhesive tape or even an application of an adhesive tape and an adhesive can be applied by the laminating device or application device 17. Also, other adhesives may be provided. The adhesive or adhesives may also be covered, for example, by means of a protective film or the like. In this case, the application device can not only apply an adhesive tape, roll up as by means of rollers, it can alternatively or additionally also roll up the adhesive by means of rollers, or apply by means of spraying, as also apply by means of nozzles.

The machined workpieces can be advantageously joined together to a window frame or to a sash frame or the like. It is also advantageous if the workpieces are mitred or milled on at least one of their ends to connect two workpieces miter each other. Also, other types of connection can be chosen so that the workpieces butt against each other and be doweled or otherwise connected. The cutting to length and miter saw, however, has the advantage that a simple processing and adjustment of the workpieces to be joined takes place, which also contributes to the stability by gluing a disc and the assembled frame needs not be designed so strong in its stability.

LIST OF REFERENCE NUMBERS

1

workpiece

2

side surface

3

side surface

4

side surface

5

side surface

6

first surface

7

duct tape

8th

second surface

9

area

10

final dimension

11

final dimension

12

final dimension

13

Endprofilfräser

14

first processing device

15

second processing device

16

cleaning device

17

Laminating device, application device

20

block diagram

Claims (14)

1. A method for machining a workpiece (1), in particular for a profiled leaf element of a window leaf frame, wherein the workpiece (1) is first machined using a first machining device (14) in order to produce a machined first surface (6) to which an adhesive (7) is to be applied, wherein the workpiece is machined further once the adhesive (7) has been applied, characterised in that the first machining for producing the first surface (6) also machines a second surface (8) which is adjacent to the first surface (6), wherein the second surface (8) is arranged in such a way that it corresponds substantially to a shadow area of the adhesive (7) applied to the first surface (6).
2. The method as claimed in claim 1, characterised in that the first machining for producing the first surface (6) is carried out in such a way that the first surface (6) is machined to a final dimension as a result.
3. The method as claimed in claim 2, characterised in that the first machining for producing the second surface (8) is carried out in such a way that the second surface (8) is also machined to a final dimension as a result.
4. The method as claimed in one of the preceding claims, characterised in that the further machining is machining of at least individual remaining surfaces of the workpiece to final dimension (10, 11, 12).
5. The method as claimed in claim 4, characterised in that the further machining is carried out in one method step or in multiple method steps.
6. The method as claimed in one of the preceding claims, characterised in that the first machining is carried out on a first machining machine (14), which is a planing machine or a milling machine.
7. The method as claimed in one of the preceding claims, characterised in that the further machining is carried out on a second machining device (15), such as in particular on a milling machine, and in particular on a profiling machine or on a machining centre.
8. The method as claimed in one of the preceding claims, characterised in that, following the production of the first surface (6) and before the application of the adhesive (7), the workpiece (1) or the first surface (6) of the workpiece (1) is cleaned by means of a cleaning device (16) and/or a pre-treatment is carried out.
9. The method as claimed in one of the preceding claims, characterised in that the application of the adhesive (7) is carried out automatically by a laminating device or an application device (17).
10. The method as claimed in claim 9, characterised in that the first machining device (14) and the laminating device or application device (17) are coupled or connected to one another in order to combine the production of the first surface (6) and the application of the adhesive (7) to the first surface (6) with one another.
11. The method as claimed at least in claim 10 and claim 7, characterised in that the laminating device or application device (17) and the second machining device (15) are coupled or connected to one another in order to combine the application of the adhesive (7) to the first surface (6) and the further machining with one another.
12. The method as claimed in one of the preceding claims, characterised in that the adhesive has or is an adhesive tape.
13. The method as claimed in one of the preceding claims, characterised in that the adhesive has or is an adhesive compound which, in particular, is a pasty or fluid adhesive compound.
14. The method as claimed in one of the preceding claims, characterised in that the workpieces are at least partly mitre-sawn or mitre-milled and mitred to one another.

Images